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Leviafan [203]
3 years ago
12

How much energy does an electric hair dryer use if it draws 8.3 amps of current when using 120 volts for 5.0 minutes?

Chemistry
2 answers:
Sloan [31]3 years ago
8 0

<u>Answer:</u> The energy drawn by electric hair dryer is 2,98,800 J

<u>Explanation:</u>

To calculate the power of the electric hair dryer, we use the equation:

P=I\times V

where,

P = power of electric hair dryer

I = Current of electric hair dryer = 8.3 A

V = voltage of electric hair dryer = 120 V

Putting values in above equation, we get:

P=8.3\times 120=996W

To calculate the energy of electric hair dryer, we use the equation:

E=P\times t

where,

E = energy of electric hair dryer = ?

P = Power of electric hair dryer = 996 W

t = time taken = 5.0 min = 300 s     (Conversion factor:  1 min = 60 sec)

Putting values in above equation, we get:

E=996\times 300=2,98,800J

Hence, the energy drawn by electric hair dryer is 2,98,800 J

nalin [4]3 years ago
3 0
0.083kwh is the answer your welcome
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